EP0218975B1 - Décalque avec un motif coloré pour appliquer sur un produit intermédiaire en céramique - Google Patents

Décalque avec un motif coloré pour appliquer sur un produit intermédiaire en céramique Download PDF

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Publication number
EP0218975B1
EP0218975B1 EP86113344A EP86113344A EP0218975B1 EP 0218975 B1 EP0218975 B1 EP 0218975B1 EP 86113344 A EP86113344 A EP 86113344A EP 86113344 A EP86113344 A EP 86113344A EP 0218975 B1 EP0218975 B1 EP 0218975B1
Authority
EP
European Patent Office
Prior art keywords
adhesion
microcapsules
picture according
ceramic
transfer picture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86113344A
Other languages
German (de)
English (en)
Other versions
EP0218975A1 (fr
Inventor
Birgit Dipl.-Chem. Schneider
Günter Eckert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KERAM-DRUCK KERAMISCHE BUNTDRUCKE GMBH
Original Assignee
Keram-Druck Keramische Buntdrucke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keram-Druck Keramische Buntdrucke GmbH filed Critical Keram-Druck Keramische Buntdrucke GmbH
Publication of EP0218975A1 publication Critical patent/EP0218975A1/fr
Application granted granted Critical
Publication of EP0218975B1 publication Critical patent/EP0218975B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/025—Applications of microcapsules not provided for in other subclasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive

Definitions

  • the invention relates to a decal with a layer containing an adhesion-promoting substance and with a ceramic color decoration to be applied to a ceramic intermediate product.
  • Decals of this kind for ceramic overglaze decorations are usually connected to a backing paper by a layer of gum arabic and dextrin. Since these are water-soluble adhesives, the decal can be detached from the backing paper after immersion in water and attached to the ceramic intermediate product by means of the portion of these adhesives adhering to it. In the subsequent decorative firing, the organic components of the decal evaporate and evaporate without residue, and the ceramic color bodies sinter with the glaze.
  • connection is not sufficient for underglaze decorations. It does not lead to sufficient adhesion on the porous and rough bisque shards.
  • an adhesive which usually consists of water, a solvent for the organic print media and a water-soluble polymer as an adhesive, e.g. Acrylic acid or cellulose derivatives, and then brings the decal.
  • the spread adhesive fills the pore entrances and the depressions of the rough surface and creates a gapless connection between the body and the decal.
  • it dissolves the organic binder of the ceramic color bodies, so that the adhesive and the decal with the color bodies flow into one another and form an intimate connection.
  • the glue and the binder of the color bodies and also the paint mask disintegrate and evaporate.
  • the ceramic color bodies sink into the depressions on the rough and porous body surface and ultimately settle directly on it.
  • DE-A 2 031 825, FR-A 2 285 635 and DE-A 1 761 996 dry transfer agents are known which contain an adhesion-promoting substance in microcapsules which are used in pressure burst and release their content.
  • Capsules which are heat-destructible are known from US Pat. No. 3,317,433 in such a way that they contain a substance in the capsule filling and / or in the capsule wall which develops a gas in the heat.
  • the capsules are proposed for the encapsulation of evaporating solvents or oil fractions, of substances which react with ambient substances or which are perishable or which are otherwise protected against bacteria or the like. must be protected, from vitamin A oils and volatile synthetic oils, from adhesives, from fats, from medical preparations, from coloring agents, from soot, from iron oxide, from aspirin and much more.
  • the capsules should release fillings that then react with the surrounding substances, including solvents that activate adhesives.
  • the invention has for its object to provide the transfer of liability easier than before when applying decals with decors on ceramic intermediates.
  • the generally liquid, often also harmful, adhesion-promoting substance for the decorative decals remains a dry material of neutral behavior in the microcapsules until use. This results in various advantageous options for use, in particular mechanization.
  • the decal can be heated, for example, immediately before application by heat radiation or microwave pulses, or pressed onto a heated surface of the biscuit product.
  • a semipermeable capsule wall is required for an osmotic increase in the internal pressure.
  • the adhesion promoter is then watered before use.
  • microcapsules are dissolved by the adhesion-promoting substance at elevated temperature or that they are destroyed by an externally applied solvent.
  • Diameters between 40 and 60 ⁇ are considered to be a particularly suitable size of the microcapsules.
  • microcapsules as large as possible, for example up to 200 p., are appropriate.
  • the larger capsules are also easier to destroy.
  • larger microcapsules are more likely to lead to malfunctions, for example if their empty shell completely covers a pore or otherwise covers a surface section in front of the adhesion-promoting substance.
  • the microcapsules will consist of a material that decomposes on heating and volatilises without leaving any residue, e.g. an acrylate so that no disturbing residues remain.
  • the adhesion-promoting substance preferably contains a solvent for the organic binder of the ceramic color bodies, e.g. Trimethylbenzene or aliphatic hydrocarbons with residual aromatics or ketones.
  • a solvent for the organic binder of the ceramic color bodies e.g. Trimethylbenzene or aliphatic hydrocarbons with residual aromatics or ketones.
  • the adhesion-promoting substance can also be or have a crystalline adhesive.
  • the encapsulation also makes the handling of such substances easier, safer and, if necessary, more tolerable to the body.
  • the new adhesion promoter has the advantage of being independent of water, which the above-mentioned adhesive always contains. This opens up new possibilities for the selection of fabrics right down to the paint mask.
  • Such decals can be removed mechanically from their carrier material in a manner known per se and pressed onto the part to be decorated by means of a soft stamp, the burst or burst microcapsules releasing the adhesion-promoting substance, which in this way exactly in the required amount for the attachment of the decal on the bisque shard can be made available and this evenly distributed.
  • the drawing shows an embodiment of the invention.
  • a carrier paper 1 is provided with a meltable layer 2. On top of this there is a layer 3 of microcapsules 4 which contain an adhesion-promoting substance.
  • a decorative image is printed on layer 3 using the screen printing method; the printing layer is designated 5.
  • a paint mask 6 is applied over it.
  • the fusible layer 2 softens, and the layers 3, 5 and 6 held together by the resist mask 6 can be removed from the carrier paper 1 provided with the fusible layer 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Paints Or Removers (AREA)

Claims (7)

1. Décalcomanie avec une couche contenant une substance assurant l'adhérence et une décoration colorée céramique appliquée au moyen de cette couche sur un produit intermédiaire céramique, la substance assurant l'adhérence étant enfermée dans des micro-capsules (4) qui peuvent être détruites par une augmentation thermique et/ou osmotique de leur pression intérieure, seule ou en association avec l'application d'une pression extérieure et/ou avec une dissolution.
2. Décalcomanie selon la revendication 1, caractérisée en ce que les micro-capsules (4) ont un diamètre compris entre 5 et 200 µ, de préférence, en moyenne, entre 40 et 60 w.
3. Décalcomanie selon l'une des revendications 1 à 3, caractérisée en ce que les micro-capsules (4) sont constituées par un matériau qui se détruit et se volatilise sous l'action de la chaleur.
4. Décalcomanie selon l'une des revendications 1 à 3, caractérisée en ce que la substance assurant l'adhérence contient, d'une manière connue, un solvant du liant organique du colorant céramique.
5. Décalcomanie selon l'une des revendications 1 à 4, caractérisée en ce que la substance assurant l'adhérence est ou comporte un adhésif cristallin.
6. Décalcomanie selon l'une des revendications 1 à 5, caractérisée en ce qu'elle peut se détacher par chauffage de son matériau de support.
7. Décalcomanie selon la revendication 6, caractérisée en ce que la décoration colorée (5) est une décoration de sous-émail et comporte une couche de couverture (6) hydrophile, de préférence soluble dans l'eau.
EP86113344A 1985-10-15 1986-09-29 Décalque avec un motif coloré pour appliquer sur un produit intermédiaire en céramique Expired - Lifetime EP0218975B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3536628 1985-10-15
DE19853536628 DE3536628A1 (de) 1985-10-15 1985-10-15 Haftungsvermittler, insbesondere fuer das industrielle anbringen von abziehbildern mit dekoren auf zwischenprodukten

Publications (2)

Publication Number Publication Date
EP0218975A1 EP0218975A1 (fr) 1987-04-22
EP0218975B1 true EP0218975B1 (fr) 1990-03-14

Family

ID=6283555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113344A Expired - Lifetime EP0218975B1 (fr) 1985-10-15 1986-09-29 Décalque avec un motif coloré pour appliquer sur un produit intermédiaire en céramique

Country Status (2)

Country Link
EP (1) EP0218975B1 (fr)
DE (2) DE3536628A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647478B1 (fr) * 1989-05-24 1991-08-30 Applic Derives Asphalte Procede de mise en place d'un revetement routier et liant bitumineux pour la mise en oeuvre de ce procede
DE19815554C2 (de) * 1998-04-07 2001-09-27 Eads Airbus Gmbh Partikelhaltige Beschichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317433A (en) * 1958-10-23 1967-05-02 Ncr Co Heat rupturable capsules
DE1761996B1 (de) * 1968-08-02 1972-12-14 Hermann Holtz Frei tragende Buchstaben,Symbole,Zeichen und Formstuecke
GB1312916A (en) * 1969-06-27 1973-04-11 Piron J G J Dry transfer materials
FR2121139A6 (en) * 1970-05-29 1972-08-18 Piron Jean Dry transfer
CH582586A5 (fr) * 1974-09-23 1976-12-15 Wifo Forschungsinst Ag

Also Published As

Publication number Publication date
EP0218975A1 (fr) 1987-04-22
DE3536628A1 (de) 1987-04-16
DE3669461D1 (de) 1990-04-19

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